Paper-feeding machine.



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' Patented June 22, 1909.

T. 0. DEXTER. PAPER FEEDING MACHINE. APPLICATION FILED JUNE 4 1908@Xhlwmoao:

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Patented June 22, 1909.

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925,879. Patented June 22, 1909.

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PAPER FEEDING MACHINE.

APPLICATION FILED JUNE 4, 1909.

925,879, Patented June 22, 1909.

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PAPER FEEDING MACHINE.

APPLICATION FILED JUNE 4, 190a.

925,879. Patented June 22, 1909.

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PAPER FEEDING MAGHINB.

APPLICATION FILED JUNE 4, 1908.

925,87 9. Patented June 22, 1909.

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UNITED TATE8 PATENT @FFICE TALBOT O. DEXTER, OF PEARL RIVER, NEW YORK.

PAPER-FEEDING MACHINE.

To all whom it may concern:

Be it known that I, TALBOT C. DEXTER, a citizen of the United States,and a resident of Pearl River, in the county of Rockland and State ofNew York, have invented certain new and useful Improvements inPaper-Feeding Machines, of which the following is a specification.

My present invention relates generally to improvements in paper feedingmachines, and particularly to feeding machines of the sheet combingtype, in which the pile of sheets is acted upon by combing feedingdevices which comb or feather out the top sheets of the pile togradually separate the successive sheets near the top so they may bedrawn from the pile periodically and fed to any machine arranged tooperate upon the individual sheets.

More particularly my present invention relates to improvements in thetype of combing feeding machines set forth in Letters Patent Nos.886,117 and 886,118, granted to me April 28th, 1908. In the machine ofthese patents the automatically controlled sheet moving instruments(preferably sheet combing wheels) are raised and lowered with referenceto the pile of sheets under the control of a sheet actuated trippingdevice through the interposition of a vertieally arranged spring device,a movable member on which the sheet actuated tripper acts being arrangedto normally restrain the action of the spring device.

In my present invention I have re arranged the controlling mechanism ofthe sheet moving instruments or combers so that the comber elevatingspring device operates in a horizontal plane, and is normally held outof action by a latching device which engages a part projecting from thecomber elevating arm. This general rearrangement of the combercontrolling mechanism constitutes the first feature of my presentinvention.

Another feature of importance in my present improvements, consists of anovel form of mechanism for tripping or releasing the comber elevatingmechanism. This part of the mechanism comprises in combination with thelatching arm which engages some movable part of the comber elevatingmechanism, a latch releasing de vice consisting essentially of acontinually traveling friction surface and a friction Specification ofLetters Patent.

Application filed June 4, 1908.

Patented June 22, 1909.

Serial No. 436,637.

shoe controlled by a sheet actuated tripper and moved by the action ofthe sheet into engagement with the traveling frictional surface tothereby cause the tripping or releasing of the instrument elevatingmeans, More specifically this part of my invention includes a pivotallymounted latch arm engaging a part projecting from the comber elevatingarm (or from any other movable part of the mechanism which moves withthe comber), a latch-tripping arm pivotally mounted upon said latchingarm and carrying a friction shoe, a continuously running friction rolljournaled adjacent to said friction shoe, and a sheet actuated trippinglinger suitably connected with said latchtripping arm, so as to movesaid frictional shoe into frictional engagement with said friction rollwhen a sheet is moved into registered position, to thereby trip thelatch and permit the comber elevating mechanism to operate.

My invention also conten'iplates suitable connections between saidlatching arm and the sheet actuated tripping finger and 0061)- eratingrollers to effect the movement of said tripping finger and rollers awayfrom the path of the sheets after the arrest of the sheet movinginstruments to free the sheets to the action of the sheet deliverymechanism.

My invention also includes an automatically controlled sheet engagingfinger, which is arranged to engage the top registered sheet of a pilewhen the sheet moving instrument is thrown out of action for the purposeof preventing accidental displacement of the sheet from any cause duringthe interval between the elevation of the sheet moving instrument andthe engagement of the registered sheet by the delivery mechanism.

In addition to the above mentioned main features, my invention includesnumerous features of construction, and in order that my invention may befully understood, I will first describe the same with reference to theaccompanying drawings, and afterward point out the novelty moreparticularly in the annexed claims.

In said drawings Figure 1 is a vertical longitudinal view of a paperfeeding machine embodying my invention, and showing the parts inposition for combing a sheet. Fi g. 2 is a similar view showing theparts in the position assumed immediately after the combing operationhas been arrested, the latch being tripped, the comber, the sheetactuated tripping finger and cooperating rollers being elevated, and thesheet engaging finger being in engagement with the registered sheet forholding it in position. Fig. 3 is a similar view of a part of the samemechanism showing a third position of said parts, in which position thesheet engaging finger is raised away from the sheet preparatory to theoperation of the sheet delivery mechanism. Fig. 4 is a detail sectionalelevation with parts broken away showing the comber controlling latchand the latch-tripping arm. Fig. 5 is a View similar to Fig. 1 takenfrom the opposite side of the machine and showing additional parts ofthe comber operating mechanism. Fig. 6 is a detail rear elevation ofpart of a combing machine showing the arrangement of the comberoperating and controlling mechanisms, the combing wheels being omittedin the interest of clearness. Fig. 7 is a horizontal sectional plan viewof the mechanism shown in Figs. 1 and 2. Fig. T is a diagrammaticelevation showing the arrangement of gears for driving the main camshaft and the comber operating shaft.

Sheet feeding machines of the type to which my present invention relatesare provided with two sets of sheet moving devices arranged to operateat opposite sides of the machine. In the accompanying drawings, I haveshown only one-half of the machine, including only one of these sheetmoving de vices, but it will be understood that two such devices of thesame construction are employed, each being independently controlled by asheet actuated tripping device, as hereinafter explained.

The frame-work of my improved machine may be of any suitableconstruction to properly support the working parts hereinafter referredto.

In the drawings, 1 represents one of the vertical side frames. The sideframes are suitably braced to make them rigid by means of stay rods 2,3, and other frame parts not shown, and within the frame is provided asuitable table or support S for carrying a pile of sheets, indicated bythe reference letter P.

5 is a constantly driven shaft carrying the lower feed rollers G and 7the shaft being braced at intervals by suitable bearing brackets (notshown). This shaft 5 may be driven in any suitable manner, wellunderstood in the art, but not shown herein. The rollers 6 are formedith a peripheral groove 6 into which the sheet actuated tripping fingersproject as hereinafter explained. The rollers 7 are the usual plain feedrollers. Rollers 6 and 7 are connected through an intervening sleeve 8which is splined to shaft 5 so as to rotate with the shaft, and at thesame time permit freedom of adjustment longitudinally of the shaft. Theadjustment of these rollers upon the shaft 5 transversely of the feedingmachine is effected through an arm 9 threaded upon an adjusting screw 9and engaging an annular groove 8 in sleeve 8. This adjustment forms nopart of my present invention but is covered in another applicationSerial No. 452,311 filed by me September 9, 1908.

10 are the drop rollers journaled in the rock arms 11 mounted upon atransverse rock shaft 12. The drop rollers 10 are supported above two ormore of the under feed rollers 7, with which they cooperate. The rockshaft 12 extends transversely of the machine, above the constantlyrunning lower shaft- 5, and is suitably braced between its ends by twoor more bracket arms (not shown), rigidly secured to the auxiliarylongitudinal frame pieces or saddles 15. The rock shaft 12 is operatedby any of the usual forms of mechanism, such for instance, as shown, bycam 13 on shaft acting through pitman 14: having antifriction roller 1%,whereby the drop rollers 10 are periodically lowered and raised into andout of engagement with the cooperating under rollers 7, for performingtheir function of feeding off the successive sheets.

The main cam shaft 20 extends transversely of the machine and issuitably journaled in the main side frames 1 and the auxiliarylongitudinal frame pieces 15. This shaft 20 may be driven in anysuitable manner, such for instance, as by a large gear 27 mounted uponit and. driven by an intermediate gear which meshes with and is drivenby pinion 25 on the main power shaft 25. The power shaft 25 is journaledin the machine frame and also carries a large gear 26, which meshes withand drives a smaller gear 30 secured to a larger gear 28, journaled upona stud 29, projecting from the side frame of the machine. The gear 28meshes with and drives a small gear 32 keyed to the projecting end ofthe comber driving shaft 35, hereinafter referred to. This geararrangement is clearly shown in Figs. 7 and 7 of the drawings.

In the place of employing two single combing wheels arrangedtransversely of the machine as heretofore in this type of feedingmachine, I prefer to employ pairs of combing wheels, one pair at eachside of the machine in the position in which the single combing wheelswere formerly arranged.

-10 are the combing wheels keyed to the opposite ends of a short shaft41, which is journaled freely upon ends a2 of a pair of rock arms 42journaled freely upon the shaft This shaft has keyed to it a gear 45,which meshes with and drives a gear 4:6 mounted upon a short shaft 47ournaled in one of the rock arms 42, and carrying at its inner end asimilar gear 48 which meshes with a gear 49 keyed to the short shaft 41,upon which the combing wheels are mounted. By this means the combingwheels are rapidly and constantly rotated, whether in elevated orlowered position.

Formed integral with and projecting upwardly from one of the combersupport rock arms 42, is a rock arm 4:2 to the upper end of which ispivotally connected at 50 the rear end of a pitman or link 51, formedbetween its ends with a horizontal guide loop or slot 52, through whichthe cam shaft 20 extends for supporting and guiding the pitman 51. Therear end of the pitman 51 carries an antifriction roller 53, which isadapted to engage the periphery of a cam 54 keyed to the shaft 20alongside the pitman 51. The purpose of this cam and pitman connectionwith the supportfor the combing wheels is to intermittently raise thecombing wheels from the pile of sheets at times corresponding with theoperation of the mechanism with which the combing wheels cooperate. Thiscam mechanism operates independently of the automatic trippingmechanism, and without regard to the position of the sheets which arebeing fed from the pile, it being necessary to provide some suchperiodically operating mechanism for the combers to avoid the feeding ofsheets from the pile at improper times.

Projecting laterally from one of the comber supporting rock arms 42, isan integral lug or finger 55, which extends over a rearwardly projectingrock arm 56 secured to a sleeve 57, journaled upon the shaft 35. Therock arm 56 preferably carries a small block of cushioning material 56and by its engagement with the lug or finger 55, lifts the pair ofcombing wheels away from the pile in a manner hereinafter explained. Therock arm is moved in one direction for lifting the combing wheels by aspring mechanism which is normally restrained by a latcl'iing devicewhich is periodically released by the sheet actuated tripping devicehereinafter explained. The rock arm 56 is moved in the oppositedirection to allow the combing wheels to move by gravity into engagementwith the pile of sheets by the action of a cam as will now be explained.

Sleeve 54 has at its end, adjacent to the rock arm 56, an upwardlyextending rock arm 58, to the upper end of which is pivotally connecteda horizontal pitman 59, formed with a yoke-shaped forward end, whichstraddles the shaft 20. The shaft 20 carries a peripheral cam 61, whichengages an antifriction roller journaled upon the pitman 59, whereby therock arms 56 and 58 are operated. Cam 61 has an extreme or high portion61, an intermediate portion 61, and a main low portion 61. Once in eachrevolution of the shaft 20 the high portion (i1 engages roller (30 toreset the spring and latching mechanisms (hereinafter described) andallow the combing wheel to rest upon the pile. The intermediate portion61 of the cam 61 permits the rocking of parts 56, 57 and 58 under thecontrol of the sheet actuated tripping mechanism hereinafter referred toby the action of the spring mechanism to be presently described. The lowportion 61 of the said cam permits a further movement of parts 56, 57and 58 for further elevating the combing wheels and for raising thesheet holding finger hereinafter explained.

Formed integral with, or rigidly connected with the sleeve 57, is adownwardly proj ceting arm or lug G5, to which is pivotally connected at66, the rear end of a rod (37, which projects horizontally forward andpasses freely through a guide lug 68, mounted upon one of the auxiliarymachine frames 15. Surrounding the rod (37, and confined between acollar 67 thereon and the guide lug 68, is an extension spring 70, whichtends to move forwardly the arm for raising the rock arm 56 intoengagement with the finger 55 for raising the comber away from the pileof sheets. This action of the spring 70 is normally restrained by alatching device, which will presently be described, and is further underthe control of the cam 61 above explained, by which cam the springdevice is reset once in every revolution of the cam shaft. The cam 61,in addition to resetting the spring device and latch, acts also as atiming device, and has a means for controlling the operation of thesheet holding finger hereinafter explained.

The pivotal connection between the rock arm 58 and pitman 59 is extendedto support the freely journaled antifriction roller 75, with which therear recessed end 76 of a latching arm 77 is adapted to engage. Thelatching arm 77 is pivotally mounted at 78 upon one of the auxiliaryframe pieces 15, so that when the latching arm is in engagement with theantifriction roller 75, the connected parts 56, 58 and (35, will be heldagainst motion and the spring 70 will he held under tension.

80 are forwardly projecting bracket arms extending from the journalportion of the main supports or brackets of the combing mechanism, and81 is a friction roller mounted upon a short shaft 82, which is freelyjournaled iu the brackets 80, and has keyed to it a gear wheel 83, whichmeshes with driving gear 45, upon the comber operating shaft 35, bywhich the friction roller 81 is constantly and rapidly rotated.

Freely pivoted at- 85 upon the latching arm 77, is a dependinglatclrtripping arm 86 formed at its lower end with a curved frictionshoe 87, which is adapted to come into contact with the rapidlyrevolving friction roller 81 to be operated thereby in the mannerpresently to be explained. Rigidly connected with the latch-tripping arm86 is a forwardly extending weight 88, the purpose of which is to holdthe shoe 87 normally out of engagement with the friction wheel 81.

From the illustration of the latch and the latch-tripping arm,particularly in Fig. 4:, it will be observed that the length of thelatch-tripping arm is slightly greater than the distance between thepivot 85 and the periphery of the friction wheel 81, assuming the latch77 to be in its engaged position, as shown in said figure of thedrawings. This being true, it will be clear that when the shoe 87 ismoved into frictional engagement with the friction wheel 81, the arm 86will be moved upon its pivot across the line between its pivot 85 andshaft 82, with the result that the latch 77 must be raised upon is pivot78 to disengage its end 7 6 from the roller 7 5 upon the rock arm 58,thereby releasing said rock arm and the parts connected therewith. Thismovement of the shoe of the latch-tripping arm into engagement with thefriction wheel 81, is controlled by the sheet actuated tripping device,which will now be explained.

Turning now to the sheet controlled trip ping mechanism for releasingthe comber elevating means, it will be observed that 100 is a sheetactuated tripping finger freely journaled at 101 upon a pin projectinglaterally from auxiliary frame 15. The lower end of this tripping finger100 is shaped to present a vertical face 100 across the plane of feed ofthe sheets, when said tripping finger is in tripping position. Thistripping finger 100 is connected through a rod 105 with thelatch-tripping arm 86, said rod 105 being pivotally connected at itsoppo site ends to finger 100 and arm 86, as clearly shown.

110 is a rock arm freely journaled upon the transverse shaft 12 andcarrying in its forward end the freely journaled rollers 111, whichoperate in peripheral contact with the rollers 6 upon shaft 5. The rockarm 110 has a rearwardly projecting guide finger 112 for confining thesheets against vertical displacement as they pass into registeredposition between rollers 6 and 111. A pitman or finger 115 connects therock arm 110 with a rock arm 116, pivotally mounted at 117 upon theframe piece 15, said arm 116 being integral with or con nected to anupwardly projecting rock arm 118, which is in turn connected through arod or finger 119 with a downwardly projecting rock arm 120, formedintegral with or rigidly connected to the latch arm 77. The

rock arm 116 just referred to, carries at its extreme forward end alaterally projecting pin or lug 121, which rests normally beneath aforwardly projecting arm 112 extending from the hub portion of thetripping finger 100.

From this description of the sheet actuated tripping mechanism it willbe observed that when a sheet moves forwardly upon the pile and engagesthe tripping finger 100, said tripping finger will be moved by thesheet, and acting through rod 105 will draw the arm 86 forwardly untilthe friction shoe 87 comes into frictional contact with the continuouslyrevolving friction wheel 81. The moment this happens the latch-trippingarm 86 will be carried forward quickly from the position shown in Fig. 1into the position shown in Fig. 2, with the result that the latch 77will be disengaged from rock arm 58 to allow the comber elevating springto act. The upward movement of the latch 7 7 acting through rock arm120, rod 119 and rock arms 118 and 116, will raise the rollers 111 androck the tripping finger 100 away from the registered sheet, thisposition of the parts being shown in Fig. 2.

130 is a sheet engaging arm or lever pivoted at 131 to the downwardlyprojecting bracket arm 132. The sheet engaging shoe 133, preferablyfaced with rubber or other friction material, is at the forward end ofthe arm or lever 130, while the rear upwardly curved end 130 of said armor lever carries an antifriction roller 134, which under certainconditions is adapted to be engaged by the face of the rearwardlyprojecting rock arm 56 of the comber elevating means.

135 is a rod pivoted at its lower end 136 to the sheet enga ing arm orlever 130 forwardly of the pivot of said arm or lever. This rod 135passes upwardly through a guide lug 137 upon the machine frame piece 15,and surrounding said rod 135 is an expansion spring 138 confined betweensaid lug 137 and an adjustable collar 139 mounted adjacent to the lowerend of the rod. This spring actuated rod 136 tends to move the shoe 133of arm or lever 130 into engagement with the top sheet of the pile.

Integral with or secured to the hub portion of the arm or lever 130, isan upwardly projecting lug 140 arranged in the path of a downwardlyprojecting finger 141, which is formed integral with and projectsdownwardly from the hub or sleeve 57 of the comber elevating mechanism.

W hen the combing wheels are operating in engagement with the pile ofsheets as shown in Fig. 1, it will be observed that the engagement ofrock arm 56 with antifriction roller 13st, holds the friction shoe 133of arm or lever 130 up out of engagement with the pile of sheets so thatthe sheets will respond freely to the action of the combing wheels.

When a sheet reaches registered position, under the action of thecombing wheels and by the mechanism described, the combing wheels areraised away from the pile of sheets, the disengagement of rock arm 56from antifriction roller 13 i, permitting the spring 135 to force thefriction shoe 133 into engagement with the registered sheet to hold itin registered position from the time that the combing wheels release ituntil the moment when the sheet delivery drop rollers engage the sheetfor delivering it from the pile. This second position is shown in Fi 2.Immediately preceding the operation of the sheet delivery drop rollers,the friction shoe 133 is again raised from the top sheet by theengagement of finger 1 11 with lug 14:0, so as to free the sheet to theaction of the drop roller mechanism. This position of the sheet holdingarm or lever 130 is shown in Fig. 3 of the drawings. It will, of course,be observed that while the first movement of the sheet holding arm orlever 130 into engagement with the sheet, is caused by the elevation ofthe combing wheels, in which action the antifriction roller 60 (whichhas been held away from controlling cam 61 by the engagement of latchingarm 77 with rock arm 58) moves into engagement with intermediateportions 61 of cam 61, the second movement of the sheet holding arm orlever 130 away from the pile is caused by antifriction roller 60 movingfrom intermediate portion 61 to low portion 61 of the controlling cam,the movement of the comber elevating parts for effecting this beingcaused by the comber elevating spring 70.

The operation of my improved machine will be clear from the abovedescription, with the added explanation that immediately following thedelivery of each sheet by the action of the drop roller mechanism, theengagement of the high portion (31 of cam 61 with antifriction roller 60rocks the comber elevating frame to compress the spring and permit thelatch 77 to again engage the antifriction roller for holding said partsin proper position for a succeeding elevation of the combing wheels. Asthe comber elevating mechanism is reset in this way, it will be clearthat the weights 88 will move the latch tripping arm 86 rearwardly, andas the latch 77 moves into latched position, the tripping finger 100 andcooperating rollers 111 will be returned to their normal position withreference to the plane of feed of the sheets. This resetting of thecomber elevating mechanism relieves the combers so they may fall bygravity into engagement with the pile, timed, of course, by thecontrolling cam 54.

The feature which I would mainly emphasize in my present invention, isthe arrangement of the continuously traveling friction surface, incombination with the latch tripping friction arm under the control of asheet actuated tripping finger, by which the comber elevating mechanismis controlled. I consider this feature to be broadly novel, and desiretocover it in the following claims, without respect to the details ofconstruction.

\Vhat I claim is:

1. In a paper feeding machine, the combination of a sheet movinginstrument, and automatic means for arresting the operation of saidinstrument, including a movably mounted restraining member, a movingfrictional surface, and a sheet controlled tripping member connectedwith said restraining member and arranged to be thrown into engagementwith said frictional surface by the action of a sheet and to be actuatedby said frictional surface for releasing said arresting means, saidtripping member being of greater length than the distance between saidrestraining member and said frictional surface when said restrainingmember is in active position.

2. In a paper feeding machine, the combination with a sheet movinginstrument, of automatic means for arresting the operation of saidinstrument, including a rotating frictional driving surface, a trippingmember mounted upon a pivot movable toward and away from said frictionaldriving surface, said tripping member being of slightly greater lengththan the distance between said pivot and said driving surface in thenormal position of said pivot, and a sheet actuated device connectedwith said tripping membcand adapted to move it into fric tionalengagement with said driving surface to be actuated thereby forreleasing said arresting means.

3. In a paper feeding machine, the combination with a sheet movinginstrument, of automatic m HUS for arresting the operation of saidinstrument, yielding means for restraining said arresting means, andtripping mechanism for said restraining means, including a rotatingfrictional driving surface, a tripping member pivotally mounted uponsaid restraining means and formed of slightly greater length than thedistance between its pivot and said driving surface in the normalposition of said restraining means, and a sheet actuated deviceconnected with said tripping member and adapted to move it intofrictional engagement with said driving surface to be actuated therebyfor releasing said arresting means.

4. In a paper feeding machine, the combination of a rotary shaft, arotary sheet moving instrument driven from said shaft, means forarresting the operation of said instrument, a latch normally restrainingsaid arresting means, a latch tripping arm pivotally mounted upon saidlatch, a rotating friction wheel driven from said shaft, and a sheetcontrolled tripping finger suitably connected with said latch trippingarm and adapted to be operated by said friction wheel.

5. In a paper feeding machine, the combination of a rotary shaft, arotary sheet combing instrument driven from' said shaft, controllingmeans for moving said instrument out of operative position, a latchnormally restraining said controlling means, a latch tripping armpivotally mounted upon said latch, a rotating friction wheel driven fromsaid shaft, and a sheet controlled tripping finger suitably connectedwith said latch tripping arm and operated by said friction wheel.

6. In a paper feeding machine, the combination of a rotary shaft, arotary sheet moving instrument driven from said shaft, a rocking memberjournaled upon said shaft for arresting the operation of saidinstrument, a latch normally restraining said rocking member, a latchtripping arm pivotally mounted upon said latch, a rotating frictionwheel driven from said shaft, and a sheet controlled tripping fingersuitably connected with said latch tripping arm and operated by saidfriction wheel.

7. In a paper feeding machine, the combination of a sheet support, asheet moving instrument, automatic means for arresting the operation ofsaid instrument, a movable member normally restraining said instrumentarresting means, sheet actuated means controlling said movable member,and means connecting said movable member with the sheet actuatedcontrolling means, whereby said sheet actuated means will be moved outof the path of sheets when the operation of the sheet moving instrumentis arrested.

8. In a paper feeding machine, the combination of a sheet movinginstrument, auto matic means for arresting the operation of saidinstrument, a movable member normally restraining said instrumentarresting means, a sheet actuated tripping finger supported normally inthe path of sheets and arranged to control said movable member, andmeans operated by said movable member for raising said sheet actuatedtripper out of the path of sheets.

9. In a paper feeding machine, the combination of a sheet support, asheet moving instrument, automatic means for arresting the operation ofsaid instrument, a movable member normally restraining said instru mentarresting means, a tripper adapted to actuate said movable member, asheet-actu ated trip finger controlling said tripper, and meansconnecting said movable member with the sheet actuated trip finger,whereby said sheet actuated trip finger will be moved out of the path ofsheets when the operation of the sheet moving instrument is arrested.

10. In a paper feeding machine, the combination of a sheet movinginstrument, automatic means for arresting the operation of saidinstrument, a latch normally restraining said arresting means, a latchtripping arm pivotally mounted upon said latch, a friction shoe carriedby said latch tripping arm, a moving friction surface, a weighted armattached to said latch tripping arm and normally holding said frictionshoe away from said friction surface, and a sheet actuated trippingfinger suitably connected with said latch tripping arm, substantially asset forth.

11. In a paper feeding machine, the combination of a sheet movinginstrument, automatic means for arresting the operation of saidinstrument, a latch normally restraining said arresting means, a latchtripping arm pivotally mounted upon said latch, a friction shoe carriedby said latch tripping arm, a rotating friction wheel, a sheet actuatedtripping finger suitably connected with said latch tripping arm, a rockarm engaging said tripping finger, and means connecting said rock armwith the latch, substantially as set forth.

12. In a paper feeding machine, the combination of a sheet movinginstrument, a spring actuated rocking frame adapted to elevate saidinstrument into inoperative position, a latch normally engaging saidrocking frame to restrain the action of its spring, a latch tripping armpivotally mounted upon said latch, a friction shoe carried by said latchtripping arm, a rotating friction wheel, a weighted arm attached to saidlatch tripping arm and normally holding said friction shoe away fromsaid friction wheel, a sheet actuated tripping finger suitably connectedwith said latch tripping arm, a rock arm engaging said tripping finger,and means connecting said rock arm with the latch, substantially as setforth.

13. In a paper feeding machine, the combination of a sheet movinginstrument, a spring actuated rocking frame adapted to elevate saidinstrument into inoperative position, a latch normally engaging saidrocking frame to restrain the action of its spring, a latch tripping armpivotally mounted upon said latch, a friction shoe carried by said latchtripping arm, a rotating friction wheel, a weighted arm attached to saidlatch tripping arm and normally holding said friction shoe away fromsaid friction wheel, a sheet actuated tripping finger suitably connectedwith said latch tripping arm, drop-rollers cooperating with saidtripping finger, a rock arm engaging said tripping finger, and droprollers, and means connecting said rock arm with the latch,substantially as set forth.

14. In a paper feeding machine, the combination of a sheet movinginstrument, a ment between said frame and said shoe for rocklng tramefor ralslng sald sheet movmg ralsmg the shoe when sald mstrument 1s outmstrnment, a sheet engaging shoe, and of operatlon.

means of engagement between said rocking TALBOT C. DEXTER. frame andsaid shoe for raising the shoe Witnesses:

While the sheet moving instrument is oper- WVM. E. KNIGHT,

ating, and independent means of engage LAURA E. MONK.

